How to make title and description in DJ-Image Slider responsive

How to make title and description in DJ-Image Slider responsive

Images in my slides are responsive and still look ok when viewed on a mobile device, however the slide titles and descriptions are too large for a mobile and are truncated. How do we make the slide titles and description fonts responsive so they are viewable/readable on mobiles? Is it through CSS or am I missing something in settings? Any tips appreciated.